O2 Arena may refer to:
*
The O2 Arena
The O2 Arena, commonly known as The O2, is a multi-purpose indoor arena in the centre of The O2 entertainment district on the Greenwich Peninsula in southeast London, England. It opened in its present form in 2007. It has the third-highest seat ...
, London
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O2 Arena, Prague
*The
3Arena, Dublin, formerly known as The O2
*The
Uber Arena, Berlin, formerly known as O2 World
*The
Barclays Arena
Barclays Arena (originally known as the Color Line Arena and formerly known as barclaycard arena and O2 World Hamburg) is a multipurpose arena in Hamburg, Germany. It opened in 2002 and can hold up to 16,000 people (13,800 or 12,947 for sportin ...
, Hamburg, formerly known as O2 World Hamburg
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